Passive Network Infrastructure

BACKGROUND Our Customer is a world-leading nuclear fuel fabrication plant, supplying more than 50 utilities in 19 countries around the world that has been in operation for more than 40 years. They make a substantial contribution to the total global supply of nuclear energy, they have a considerable responsibility to nmaintain a level of production […]

Nuclear Process Control and Monitoring System

As our customer makes a substantial contribution to our total supply of nuclear energy, there is a considerable responsibility for our customer to maintain a level of production that will continue to service the industry. It is therefore critical that our customer limits vulnerabilities in their processes at the plant to ensure steady production within […]

Routing

Routing, the Network Interconnection Service Ultimate Connectivity The internet ‘IP’ protocol is an extremely capable at moving or ‘routing’ data between sub-networks and networks alike. Whist this is a good thing for authorised network access is also a point where unauthorised entry can wreak havoc with a computer system especially a system containing legacy devices […]

Firewall

Firewall – a tool not a solution A line of defence When the topic of security comes up many think of the firewall as the solution. In fact the firewall is a product – security is a state of mind. Security means different things to different people and much depends upon an individual or an […]

Management

What is Network Management and why is it needed? Network Activities Log and Event Management Network Performance Management Network Administration Log and Event Management Modern managed Automation networks keep a watching eye on virtually everything going on across the network. The only question is “are you listening?” Effective listening requires investment in a few key […]

Switching

Switched Ethernet Why we are where we are Automation networks tend to be clusters of inter-connected and inter-related devices working towards a common outcome. Historically these devices were interconnected using proprietary tranmission techniques based upon the multi drop RS485 protocol; whilst limited in size and often unrelaible the serial fieldbus did enjoy a degree of […]

Media

Network Media Selection Investment in infrastructure The outcome of any Critical Network installation should be a infrastructure certified to EN50173 or equivalent. Every installation will consider aspects of: Environmental Robustness Cable construction Optical properties Diverse routing Capacity Termination After full consideration IT4A will recommend an approach that achieves the desired project outcome. Post implementation IT4A […]

S2E and Gateways

Serial RS232 / RS485 conversion to Ethernet Device Servers At the same time the reliability of intelligent electronic devices (PLCs, RTU, RIO, Instruments,etc) improved well beyond any prediction. Factor in the major cost of software engineering and the cost will be significant. Using devices that convert signals from serial RS232/485/422 to Ethernet 10/100BaseT can put […]